mmondeedafirst
mmondeedafirst mmondeedafirst
  • 30-11-2018
  • Mathematics
contestada

Forgot how to do polynomials, can someone PLEASE answer this practice question and explain how you got it

2x^2-3x-5

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 30-11-2018

Answer: ( x + 1 ) ( 2x - 5 )


Step-by-step explanation:

Break the expression into groups:

2x² - 3x - 5

= ( 2x²+ 2x ) + ( - 5x - 5 )

Factor out  2x  from  :

2x² + 2x  =>  2x ( x + 1 )

Factor out - 5 from :

-5x  - 5 => -5 ( x + 1 )

2x ( x + 1 ) - 5 ( x + 1 )

Therefore:

Factor  out common  term : x + 1

=> ( x + 1 ) ( 2x - 5 )

Hope that helps!


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